Am 05.04.2014 17:01, schrieb Miles Fidelman: > It strikes me that I haven't seen a general answer to the original question > how to set up PTR records when one is serving more than one domain under > the same IP address.
don't setup PTR records and A records for a mailsever setup *one* PTR record, *one* A record and *one* HELO-name just use a generic hostname like "mail.yourcompany.tld" and use that as MX records for as many domains you are hosting on that mailserver that: a) works b) is consistent c) don't bring you in trouble if it comes to TLS d) keeps things simple proven by hosting some hundret domains for a decade on one hostname